RU48787U1 - MAGNETOPHORESIS DEVICE - Google Patents

Abstract

The invention e relates to medicine, namely to surgery, namely to proctology. In medical practice, various physiotherapeutic methods of treatment (laser, UHF currents, electrophoresis, etc.) are widely used.

The proposed device for magnetophoresis is a cylindrical solenoid with a winding length of 25 mm and a diameter of 4 mm (Fig. 1, 2). Inside the solenoid is placed a ferrite core (figure 1, position 1) M-200-NN with a diameter of 2 mm and a length of 25 mm

To control the temperature of the solenoid, a thermocouple is placed on its surface (Fig. 1, item 6), the conclusions, the latter pass inside the drainage tube and are output at the end for connection to a recording device.

The device is poured with composite (Fig. 1, item 3) and placed inside a polyethylene tube with parameters: inner diameter 4 mm, outer 7 mm. In the wall of this tube in the form of its second lumen there is a micro-irrigator (Fig. 1, item 5) with lateral external holes at the level of the solenoid for introducing the drug mixture into the cavity.

The ends of the solenoid coil are connected to the power source through two leads (Fig. 1, pos. 4) with fluoroplastic insulation. The solenoid can operate from a source of both direct and alternating current with a frequency of 50 to 100 Hz. Connecting a solenoid to a direct current source (battery-rectifier) with U = 1.5-6 V, or to an AC transformer with an output voltage of 6-9 V allows you to create an alternating or constant magnetic field with an intensity of 9-10 mT at the ends of the solenoid.

Positive effect

The small size of the device, simplicity, the effectiveness of the proposed device for magnetophoresis in comparison with the prototype. It is due to the approach of the source of the electromagnetic field to the pathological focus (the device is placed in the cavity of the abscess), it allows, at small values of the magnetic field induction, to provide the maximum therapeutic effect.

Description

In medical practice, various physiotherapeutic methods of treatment (laser, UHF currents, electrophoresis, etc.) are widely used. At the same time, magnetotherapeutic devices and apparatuses are still not often found in the arsenal of medical institutions (Yu.M. Raigorodsky, 1995).

It is known that, under the influence of a magnetic field in molecules, pronounced orientational phenomena arise, which play an important role in the regulation of biochemical processes. Since the vascular and nervous systems are the most sensitive to the effects of the magnetic field, the results of its action are the acceleration of general and local blood circulation, trophic and redox processes in the tissues. Numerous studies confirm that the magnetic field has an anti-inflammatory, anti-edematous effect, reduces autoimmune aggression, helps to normalize homeostasis and reduces the tension of the body's adaptive reactions, improves microcirculation and regeneration in tissues, and activates the anticoagulant function of blood (B.I. Gornaev et al., 1990; A.S. Demetsky et al., 1990).

A more pronounced therapeutic effect is achieved by magnetophoresis, in which, under the influence of a magnetic field, the advancement in the tissue of a drug is significantly enhanced and a higher concentration of drugs in the pathological focus is created (E.S. Weinstein et al.). The advantage of low-frequency magnetotherapy, including magnetophoresis, is also that their use is not accompanied by heat and can be used in the early stages after surgery, trauma or the onset of the development of the inflammatory process (E.I. Veremey 1990; N.V. Gonchar with et al., 1990).

Prototype

The most successful magnetotherapy opportunities, as well as the advantages of combining it with other physical treatment methods, were used in the Intramag apparatus (RF patent No. 2045292). It uses a traveling magnetic field moving along the urethra in a zigzag pattern.

The Intramag apparatus contains a magnetic field source in the form of a sequence of coils with L-shaped cores forming a gutter. Inside the gutter there is an irrigator made of a hollow polyethylene tube with evenly spaced openings along the entire length of the side surface and two fittings for supplying and suctioning the drug. The irrigator is equipped with cylindrical inserts of soft magnetic material. A coil power supply with an electronic switching circuit is connected to the terminals, which ensures the movement of the field in the direction indicated by the zigzag line.

The device prototype works as follows: after the introduction of the irrigator into the urethral canal, it is placed inside the gutter between the plates of the core cores of the coils. The supply voltage is applied to the terminals in the sequence indicated by the line. An irrigator with inserts made of magnetic material is shifted alternately to each of the plates as they are turned on at a given frequency. As a result, inside the urethral canal, the irrigator performs wave-like transverse vibrations propagating in the direction of the fittings. Through the nozzle and the holes, the drug is supplied and irrigates the urethra, and then aspirated through the additional holes of the nozzle. In this case, due to the excitation of transverse vibrations, a gap is formed between the irrigator and the channel, which creates favorable conditions for irrigation, and the wave-like nature of the vibrations contributes to the removal of the spent drug and necrotic masses towards the outlet fitting.

The effect of the apparatus is based on the creation of oscillatory movements of the irrigator due to the traveling magnetic field. This device is difficult to set up and operate.

The device proposed as an invention is schematically depicted in the figure, where

1 - ferrite core

2 - winding wires

3 - insulating composite

4 - solenoid leads connected to a power source

5. micro irrigator

6 - thermocouple

The proposed device for magnetophoresis is a cylindrical solenoid with a winding length of 25 mm and a diameter of 4 mm (Fig. 1, 2). Inside the solenoid is placed a ferrite core (figure 1, position 1) M -200-NN with a diameter of 2 mm and a length of 25 mm.

To control the temperature of the solenoid, a thermocouple is placed on its surface (Fig. 1, item 6), the conclusions, the latter pass inside the drainage tube and are output at the end for connection to a recording device.

The device is poured with composite (Fig. 1, item 3) and placed inside a polyethylene tube with parameters: inner diameter 4 mm, outer 7 mm. In the wall of this tube in the form of its second lumen there is a micro-irrigator (Fig. 1, item 5) with lateral external holes at the level of the solenoid for introducing the drug mixture into the cavity.

The ends of the solenoid coil are connected to the power source through two leads (Fig. 1, pos. 4) with fluoroplastic insulation. The solenoid can operate from a source of both direct and alternating current with a frequency of 50 to 100 Hz. Connecting a solenoid to a direct current source (battery-rectifier) with U = 1.5-6 V, or to an AC transformer with an output voltage of 6-9 V allows you to create an alternating or constant magnetic field with an intensity of 9-10 mT at the ends of the solenoid.

An example of using the device.

Patient A., 36 years old, IB 167/36, was admitted to the proctology department of Municipal Hospital No 1 in Makhachkala on November 10, 2002 with a diagnosis of acute ischiorectal paraproctitis. After preliminary preparation on the day of admission, a radical excision of acute paraproctitis was performed according to the Gabriel method. After sanitation of the wound surface, the proposed device for magnetophoresis was introduced into the anal canal.

In the postoperative period, along with general infusion therapy, using the device we proposed, magnetophoresis was performed with the drug mixture (1.0 g. Kanamycin + 30 ml 025% novocaine solution) in one session daily for 6 days.

The postoperative period was uneventful. On November 17, he was discharged in satisfactory condition under the supervision of a proctologist at the place of residence.

Features distinguishing from the prototype:

The device contains a cylindrical solenoid inside which a ferrite core is placed, the device is equipped with two leads for connecting to a power source, a thermocouple for measuring temperature, the device is placed inside a polyethylene double-lumen tube with an inner diameter of 4 mm, an external 7 mm, and a microirrigator with lateral external holes at the level of the solenoid for the introduction of the drug mixture. The solenoid is connected to an AC transformer. Positive effect

The small size of the device, simplicity, the effectiveness of the proposed device for magnetophoresis in comparison with the prototype. It is due to the approach of the source of the electromagnetic field to the pathological focus (the device is placed in the cavity of the abscess), it allows, at small values of the magnetic field induction, to provide the maximum therapeutic effect.

Information taken into account:

1. Vanstein E.S. Zobina L.V. "Magnetophoresis and its experimental justification." Ophthalmological Journal. No. 4, 1993, p. 245-247.

2. Raygorodsky Yu.M. Saprykin I.I., Sumarokova B.C. "A device for the treatment of amblyopia." Pat. Russia No. 044528 from 09/27/95

3. The Intramag apparatus (RF patent No. 2045292) is a prototype

Claims (1)

A device for magnetophoresis, which is a magnetic field source, characterized in that it contains a cylindrical solenoid inside which a ferrite core is placed, equipped with two leads for connecting to a power source, a thermocouple, while the device is placed inside a polyethylene double-lumen tube with an inner diameter of 4 mm, external 7 mm, and in the wall of the tube there is a micro-irrigator with lateral external holes at the level of the solenoid for introducing the drug mixture.